In demanding bearing applications where metal components fall short, Bearing Grade PEEK Rod has become the material of choice for engineers seeking low friction, high wear resistance, and consistent dimensional stability. This specialized grade incorporates proprietary solid lubricant additives that dramatically reduce the coefficient of friction while retaining the inherent high-temperature performance of PEEK. While Bearing Grade PEEK Rod excels in dynamic load scenarios, designers often turn to our Glass Fiber Filled PEEK Rods when added stiffness and improved creep resistance at elevated temperatures are required. For applications demanding the highest tensile strength and minimal thermal expansion, the carbon fiber Filled PEEK Rod provides a robust solution. And when pure chemical inertness and electrical insulation are the primary concerns, the Natural PEEK Rod remains the go-to unfilled option. This portfolio approach allows you to select the optimal PEEK formulation for each part of your assembly, balancing wear, strength, and cost with precision.
The Bearing Grade PEEK Rod is engineered for maintenance-free bearing systems operating in harsh environments where traditional lubrication is impractical or impossible. Manufactured from high-molecular-weight PEEK resin blended with advanced solid lubricants and reinforcing agents, each rod delivers a consistent microstructure that machines easily into bushings, wear pads, thrust washers, and ball bearing cages. The homogeneous dispersion of fillers ensures that wear properties remain uniform from the rod’s outer skin to its core, eliminating the risk of performance drop-off during machining. Typical industries relying on this material include semiconductor manufacturing, oil and gas downhole tools, food processing equipment, and aerospace actuators—all environments where even small amounts of wear debris can cause catastrophic system failure. The material’s ability to operate dry or in contact with aggressive media such as hot water, steam, fuels, and hydraulic oils makes it uniquely versatile among engineering thermoplastics.
| Property | Typical Value | Test Method |
|---|---|---|
| Density | 1.40 g/cm³ | ISO 1183 |
| Tensile Strength | 95 MPa | ISO 527 |
| Flexural Modulus | 4.2 GPa | ISO 178 |
| Compressive Strength | 125 MPa | ISO 604 |
| Coefficient of Friction (dynamic) | 0.15 – 0.25 | ASTM G99 |
| Maximum Service Temperature | 250°C | UL 746B |
| Water Absorption (24 h) | 0.1% | ISO 62 |
| Wear Rate (K factor) | < 3.0 × 10⁻⁶ mm³/N·m | ASTM G99 |
| Flammability Rating | V-0 | UL 94 |
Bearing Grade PEEK Rod is available in diameters ranging from 6 mm to 150 mm with standard lengths of 1,000 mm or 3,000 mm. Custom diameters and lengths can be supplied upon request. All rods undergo rigorous inspection for void content and filler distribution using ultrasonic scanning, and each production lot is accompanied by a certificate of conformance. For applications that require additional wear reduction, our team can recommend complementary surface treatments or mating materials that further extend the service life of the bearing assembly.
